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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 931 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 8, 4 or 15.
  2. 2.Which is closest to 801 ÷ 21? (a) 80 (b) 20 (c) 400 (d) 40
  3. 3.4/5 + 5/6 =
  4. 4.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 3, 8 or 6.
  5. 5.Which is closest to 403 + 296 + 697? (a) 1300 (b) 1600 (c) 1400 (d) 1500
  6. 6.Find the LCM of 28 and 36.
  7. 7.Round 20.74 to one decimal place. =
  8. 8.58 − 27 ÷ 3 × 3 =
  9. 9.9 painters can paint a school in 28 days. How many days would 21 painters take, working at the same speed?
  10. 10.The ratio of boys to girls in a class is 9 : 7. There are 27 boys. How many girls are there?
  11. 11.Find the LCM of 9 and 8.
  12. 12.Three temple bells ring every 15, 9 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  13. 13.If 8 notebooks cost ₹256, how much do 14 notebooks cost (in ₹)?
  14. 14.Write 1/5 as a percent.
  15. 15.30 ÷ 6 × 9 + 5 =
  16. 16.19 + 10 × 5 − 18 =
  17. 17.What is the smallest number you must take away from 575 so that it divides exactly by 3?
  18. 18.Which of these numbers divides exactly by 8? (a) 5073 (b) 9576 (c) 9355 (d) 2053
  19. 19.The HCF of two numbers is 5 and their LCM is 50. One of the numbers is 25. What is the other number?
  20. 20.Which is closest to 1996 ÷ 41? (a) 50 (b) 500 (c) 100 (d) 25
  21. 21.What is the smallest number you must add to 285 so that it divides exactly by 12?
  22. 22.Round 81.74 to one decimal place. =
  23. 23.If 3 kg of rice costs ₹159, how many kg can you buy for ₹477?
  24. 24.Nisha takes 75 seconds and Rohan takes 40 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  25. 25.What is 5/6 of 102 litres?
  26. 26.The HCF of two numbers is 2 and their LCM is 48. One of the numbers is 6. What is the other number?
  27. 27.1.01 + 8.8 =
  28. 28.How many factors does 18 have?
  29. 29.What percent of 250 is 85?
  30. 30.Manav takes 60 seconds and Rohan takes 75 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  31. 31.Which of these numbers divides exactly by 6? (a) 6596 (b) 1656 (c) 9159 (d) 4347
  32. 32.12 : 7 = 36 : ?
  33. 33.What is 10% of 440?
  34. 34.Which of these numbers divides exactly by 11? (a) 7592 (b) 9622 (c) 8853 (d) 5588
  35. 35.If 5 kites cost ₹195, how much do 11 kites cost (in ₹)?
  36. 36.Find the third proportional to 6 and 24 (that is, 6 : 24 = 24 : ?).
  37. 37.4/11 − 2/12 =
  38. 38.49 + 5 × 12 − 33 =
  39. 39.How many factors does 22 have?
  40. 40.Find the LCM of 10, 3 and 4.

Answer key

  1. 122
  2. 40
  3. 49/30
  4. 25
  5. 1400
  6. 252
  7. 20.7
  8. 31
  9. 12
  10. 21
  11. 72
  12. 90
  13. 448
  14. 20
  15. 50
  16. 51
  17. 2
  18. 9576
  19. 10
  20. 50
  21. 3
  22. 81.7
  23. 9
  24. 600
  25. 85
  26. 16
  27. 9.81
  28. 6
  29. 34
  30. 300
  31. 1656
  32. 21
  33. 44
  34. 5588
  35. 429
  36. 96
  37. 13/66
  38. 76
  39. 4
  40. 60

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